Speaking of Steve Eldridge, he also had a letter about the new Metro rail car configurations, with a pretty good idea
My suggestion is a train car configured with no seats at all, one specifically designed to attract people who don’t mind standing. This specific design could be called a Flatbed.
It would allow for folks with bicycles since that car would have a lot of space.
I think this may be a way to allow for bikes on Metro during rush hour. A car configured like the Hong Kong Airport shuttle (pictured) would create more space, some of which could be used by cyclists.